Add 5/28 and 30/90
5/28 + 30/90 is 43/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
5/28 = 5 × 45/28 × 45 = 225/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
30/90 = 30 × 14/90 × 14 = 420/1260 - Add the two like fractions:
225/1260 + 420/1260 = 225 + 420/1260 = 645/1260 - 645/1260 simplified gives 43/84
- So, 5/28 + 30/90 = 43/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/28+30/90 5/28+60/90 5/56+30/90 15/28+30/90 5/84+30/90 25/28+30/90 35/28+30/90